<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" width="500" height="500">
  <defs>
    <clipPath clipPathUnits="objectBoundingBox" id="myPath">
      <rect x="0" y="0" height="1" width="1"/>
    </clipPath>
  </defs>

  <!-- You should see a thin horizontal light lime line. -->
  <path d="M0 99.6 L500 99.6 L500 100.3 L0 100.3 Z" fill="lime" clip-path="url(#myPath)"/>
  <!-- You should see a vertical light lime line. -->
  <path d="M199.9 0 L199.9 500 L200.4 500 L200.4 0 Z" fill="lime" clip-path="url(#myPath)"/>
</svg>
